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grandymaker [24]
3 years ago
14

Factor completely 2a^2 + 2b^2 - 5ab

Mathematics
2 answers:
Brums [2.3K]3 years ago
8 0
(a-2b)*(2a-b) is how you factor hope this helps 
Zinaida [17]3 years ago
5 0

(a - 2b) • (2a - b) is how you factor this using FOIL
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6(1—a) =3(a—b)+1 4(b—2) =3a Consider the system of equations above. If (a, b) is the solution to the system, then what is the
Jet001 [13]
6-6a=3a-3b+1,    9a-3b=5
<span>4b - 8 =3a,           3a-4b=-8
</span> 
9a-3b=5
(3a-4b=-8 )*(-3 )

 
9a    -3b=    5
-9a+12b=+24
adding both equations
9b=29, b=29/9

3a=4b-8=4*29/9 -8=(4*29-8*9)/9 = 44/9
a=44/27
a-b=44/27 - 29/9=44/27 - 29*3/27=-43/27
this is a correct answer, unfortunately they do not have this choice, probably they made mistake somewhere. I even check the solution of equations by substitution values of a and b into equations

5 0
3 years ago
In circle O, AD and BE are diameters.
earnstyle [38]

Answer:

I get it now.

Step-by-step explanation:

6 0
3 years ago
64,-48,36,-17... which formula can be used to describe the sequence?
photoshop1234 [79]

Answer:

Explicit formula is an = 64(-3/4)^(n-1).

Step-by-step explanation:

Looks like a geometric sequence with a negative common ratio.

-48/64 = - 3/4

36 / -48 = -3/4

Now -27/36 = -3/4 so I think there's a typo in the question. Its -27 not -17.

The required formula is 64(-3/4)^(n-1) .

7 0
3 years ago
30 POINTS HELP IM LITERALLY SO DUM
Aliun [14]

Answer:

b. 6

Step-by-step explanation:

I'm not 100% sure if this is the answer but here was my thinking process:

1/4 of 24 is 6, and 6 + 3 is 9, so the brothers age is probably 9, and then 24-9 is 15, and the difference between 15 and 9 is 6. Once again I don't know if this is right or not, but either way I hope this helps!

7 0
2 years ago
What is 4-2f when f=1
nalin [4]

Answer:

2

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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